diff --git a/acme.sh b/acme.sh
index bcd6b92810..3b763c066d 100755
--- a/acme.sh
+++ b/acme.sh
@@ -6813,7 +6813,7 @@ _send_notify() {
 
   _nsource="$NOTIFY_SOURCE"
   if [ -z "$_nsource" ]; then
-    _nsource="$(hostname)"
+    _nsource="$(uname -n)"
   fi
 
   _nsubject="$_nsubject by $_nsource"